Home / 915,909.20-1,373,223.80-541,739.60

Finding the Fourth Proportional to 915,909.20, 1,373,223.80 and 541,739.60

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Solution

The fourth proportional to 915,909.20, 1,373,223.80 and 541,739.60 is: 812,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,909.20 : 1,373,223.80 = 541,739.60 : x
  2. Step 2: Convert to fraction form
    915,909.20/1,373,223.80 = 541,739.60/x
  3. Step 3: Cross multiply
    915,909.20x = 1,373,223.80 × 541,739.60
  4. Step 4: Simplify right side
    915,909.20x = 743,929,712,122.48
  5. Step 5: Solve for x
    x = 743,929,712,122.48/915,909.20
  6. Step 6: Final answer
    x = 812,230.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.